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Finding the Fourth Proportional to 53,397,817.70, 74,927,005.90 and 53,397,817.70

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Solution

The fourth proportional to 53,397,817.70, 74,927,005.90 and 53,397,817.70 is: 74,927,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,397,817.70 : 74,927,005.90 = 53,397,817.70 : x
  2. Step 2: Convert to fraction form
    53,397,817.70/74,927,005.90 = 53,397,817.70/x
  3. Step 3: Cross multiply
    53,397,817.70x = 74,927,005.90 × 53,397,817.70
  4. Step 4: Simplify right side
    53,397,817.70x = 4,000,938,601,855,025
  5. Step 5: Solve for x
    x = 4,000,938,601,855,025/53,397,817.70
  6. Step 6: Final answer
    x = 74,927,005.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.